Sagittal plane assessment of spino-pelvic complex in a Central European population with adolescent idiopathic scoliosis: a case control study

Table 3 The partition of sagittal parameters based on the Lenke classification

	Control	Lenke 1	C—L1	Lenke 2	C—L2	Lenke 3	C—L3	Lenke 4	C—L4	Lenke 5	C—L5	Lenke 6	C—L6
	n = 69	n = 165	t test	n = 12	t test	n = 92	t test	n = 8	t test	n = 155	t test	n = 26	t test
(Degree)	Mean ± S.D.	Mean ± S.D.	p	Mean ± S.D.	p	Mean ± S.D.	p	Mean ± S.D.	p	Mean ± S.D.	p	Mean ± S.D.	p
T1–T12 Kyp	43.4 ± 12.7	34.0 ± 17.5	< 0.001	36.9 ± 18.3	0.148	28.3 ± 18.1	< 0.001	33.4 ± 19.9	0.060	38.8 ± 14.5	0.039	26.5 ± 16.9	< 0.001
T4–T12 Kyp	37.7 ± 15.1	27.2 ± 20.9	< 0.001	27.7 ± 20.2	0.049	20.4 ± 19.2	< 0.001	23.4 ± 20.0	0.019	32.6 ± 13.8	0.022	18.5 ± 19.6	< 0.001
T5–T12 Kyp	32.9 ± 15.0	25.1 ± 18.3	0.005	26.2 ± 18.8	0.185	21.0 ± 15.9	< 0.001	23.3 ± 16.9	0.102	27.6 ± 12.5	0.012	21.1 ± 11.4	< 0.001
L1–L5 Lord	46.0 ± 9.1	46.8 ± 13.9	0.688	49.4 ± 13.6	0.285	44.5 ± 13.2	0.449	47.5 ± 8.8	0.657	47.1 ± 12.1	0.542	44.6 ± 15.9	0.630
L1–S1 Lord	57.0 ± 10.4	54.5 ± 17.7	0.310	58.3 ± 14.6	0.718	53.0 ± 12.9	0.054	55.6 ± 8.4	0.707	56.4 ± 12.7	0.724	52.9 ± 14.5	0.151
PT	7.1 ± 7.3	7.4 ± 8.0	0.821	5.2 ± 7.8	0.415	8.7 ± 9.9	0.314	6.7 ± 4.5	0.866	7.3 ± 8.1	0.862	7.0 ± 6.7	0.937
PI	46.2 ± 8.3	46.4 ± 11.9	0.934	47.5 ± 13.7	0.690	49.8 ± 14.3	0.095	49.9 ± 3.7	0.227	46.7 ± 13.1	0.822	46.3 ± 11.6	0.913
SS	39.1 ± 6.7	39.0 ± 9.8	0.926	42.3 ± 10.0	0.187	41.1 ± 10.3	0.199	43.2 ± 3.1	0.095	38.9 ± 11.4	0.896	39.5 ± 7.5	0.817

Kyp kyphosis, Lord lordosis, PI pelvic incidence, PT pelvic tilt, SS sacral slope, S.D. standard deviation. The statistical analysis of Lenke groups is compared to control with independent sample t test

ISSN: 2397-1789